Economics of Hybrid Poplar Plantations in Western Canada for Bioethanol Production
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
This two papers thesis explores the economics of hybrid poplar plantations as a potential bioethanol feedstock in Canada. The first paper (Chapter 2) is the stand-level analysis of the financial viability of producing hybrid poplar on private lands for both single-stem and coppice production systems. The results suggest that the coppice system is financially inferior to the single stem. But the single-stem production system could be financially feasible, given the current land and biomass prices and a real discount rate of less than 4.6%. The second paper (Chapter 3) is the forest-level analysis. In this model, public lands are considered to investigate the impacts of different policies on the NPV of a stylized forestry firm for both juvenile and split mature initial forest inventories. The investigated policy variables include varying even-flow conditions, allowing the exotic plantations on public lands, and accounting for sequestered carbon. The results show that permitting hybrid poplar plantations on public lands not only results in higher NPVs, but also leads to more non-harvested lands. Also, the results indicate that accounting for sequestered carbon does not always lead to an increase in the firm`s total NPV. The reason is that carbon sequestration has a dynamic nature that depends on several factors in each scenario. In addition, when the forestry firm maximizes the timber NPV instead of both timber and carbon NPV, there is always a social cost of not considering carbon that actually has value.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it